That has been the rumor. Plus there is a photo showing Kenobi looking at a hologram of Anakin kneeling before Sidious. That could be the name reveal scene right there? Possible anyway. Or maybe it's a fake photo? Doubt it though.

Anyway, I don't know what I was expecting out of the Mustafar playse but that thing blows bad. I am assuming the bases probably have some sort of action feature function. It probably make the figures hop up about 2 inches or something lame like that.

In an Insider it said somethign about other pieces connecting to it. This could mean that the floor connects to other floor pieces, possibly with other sections of the planet and the secret Separatist lair. So, this could be a bit better than we think... I'll end up getting all of it, and probably doing some major repainting.

Y'know, it looks like there is a round section of the playset, (halfway down, on the left) that looks like a little lava pool made of foam. It looks to be the same feature that the vintage Dagobah had. You can stick the figure into the foam and pretend that he is sinking.

That cannon on the Freeze Chamber playset is removable. So, you don't need to hinder the appearance of the playset with it. It's a very nice little playset, I wish Hasbro would do more like this... but it appears that the support wasn't even there for this, so what is their incentive to make them?

The playset is pretty cool, but the thing I'm most disappointed about it is the size. When I heard it was going to be huge, I thought it would be around POTF2 AT-AT size. To me it looks to be around the size of the Geonosis Arena. Oh well. I guess I'll buy it if it goes on clearance.

Just scoped out the little Hasbro ROTS product booklet (that will be coming with the toys), and in the Mustafar playset section, it refers to the figure that's being included as "Anakin" - twice. No Darth Vader mention.

Likely that the booklet was put together much earlier than the final packaging for the playset though, so I doubt there's anything to it.

Hopefully there are some additional pieces that connect too. Which Insider was that mentioned in? #79? I only have #80 handy...

It was hard to tell, and they had people watching over us like we were criminals or something, so I was afraid to touch anything

So I don't have an answer for you, unfortunately. And since Hasbro is not going to be attending the regular Toy Fair starting tomorrow, I guess we'll just have to wait and see. Unless one of the other sites asked that question.